| Customization: | Available |
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| Certification: | ISO |
| Surface: | Spiral |
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Production Process of Spring Steel Wire
Material Selection and Pretreatment: We embark on our journey with the highest-quality high carbon or alloy steel, renowned for its unrivaled elasticity and robustness. During preprocessing, we engage in precise heating and rolling, meticulously refining the microstructure to elevate mechanical properties. This foundational step lays the groundwork for the exceptional quality and performance of our wire.
Step One
Surface Treatment: At this stage, we employ advanced techniques such as acid pickling phosphating or mechanical methods, judiciously selected to eradicate iron oxide scale, establish a protective phosphating film, or create an immaculate surface finish. For spring steel wires requiring extraordinary fatigue life, like valve spring steel wires, coil peeling is crucial to minimize surface imperfections for superior longevity.
Step Two
Wire Drawing: This sophisticated process gracefully reduces the diameter of the steel wire through successive cold drawing, significantly enhancing its strength and hardness. For high-strength spring steel wire, it is paramount to maintain the outlet temperature below 150 ºC during each drawing pass to prevent strain aging and torsional cracks. Effective lubrication and cooling are vital to manage temperature rises and ensure optimal performance.
Heat Treatment: This essential phase encompasses quenching and tempering. Carbon steel spring wires typically undergo lead bath quenching to achieve a refined pearlite structure. Alloy steel wires benefit from annealing heat treatments, whereas stainless steel wires are processed using solid solution techniques. The oil quenching process can be enhanced with water quenching or polymer-enhanced water quenching for superior outcomes.
Step Three
Forming: Utilizing precision equipment, we expertly wind the drawn steel wire into an array of spring shapes, such as compression springs and tension springs, customized to fulfill diverse application demands. This precise forming process ensures each wire meets stringent design and performance criteria.
Inspection and Packaging: Through exhaustive testing, we confirm that each spring steel wire aligns with strict standard specifications. Secure packaging is then implemented to ensure product integrity and safety throughout transportation and storage, preserving the wire's pristine condition.
Spring steel wire is a masterfully engineered steel wire used in crafting springs or model parts, offering a wide range of applications from mattress springs to suspension springs, engine valves, and camera shutters. Quality standards differ across types, including raw drawn, lead quenched, galvanized, and oil quenched spring steel wire, each meticulously designed to meet specific demands.
| Steel Grade GB Standard |
Carbon % |
Silicon % |
Manganese % |
Phosphorus % |
Sulphur % |
Chromium % |
Nickel % |
Cuprum % |
| 60# | 0.60-0.61 | 0.18-0.22 | 0.52-0.59 | 0.012 | 0.007 | 0.06-0.07 | 0.05 | 0.18 |
| 65# | 0.65 | 0.21 | 0.56 | 0.013 | 0.008 | 0.05 | 0.04 | 0.14 |
| 65Mn | 0.60-0.70 | 0.10-0.25 | 0.70-1.00 | 0.030 | 0.030 | 0.20 | 0.20 | 0.25 |
| 70# | 0.69-0.71 | 0.19-0.21 | 0.53-0.58 | 0.010-0.012 | 0.003-0.006 | 0.01-0.05 | 0.02-0.04 | 0.04 |
| 72A 72B | 0.72 | 0.19 | 0.71 | 0.013 | 0.006 | 0.02 | 0.02 | 0.03 |
| 80# | 0.80-0.81 | 0.22-0.24 | 0.59-0.76 | 0.008 | 0.004 | 0.04 | ||
| 82A 82B | 0.82 | 0.24-0.25 | 0.76-0.77 | 0.011-0.014 | 0.004-0.007 | 0.17-0.17 |
Tianjin Kaishuo Weiye Steel Co., Ltd. is a distinguished leader in the global steel manufacturing industry, synonymous with innovation and unparalleled quality. As a top-tier manufacturer, we masterfully produce a wide array of steel products, including galvanized steel coils, pre-painted galvanized steel coils, along with steel pipes, plates, and an expansive selection of stainless steel items such as sheets, pipes, profiles, bars, and coils. Strategically positioned with four branch offices throughout China and our main headquarters in Tianjin, we are at the forefront of steel innovation and production. With years of deep-rooted industry knowledge, we have forged strategic partnerships with renowned stainless steel manufacturers like TISCO, BAOSTEEL, and POSCO (ZPSS), which fortifies our standing in the high-quality steel supply market. Our extensive inventory, exceeding 2,000 tons and featuring over 800 unique specifications, empowers us to fulfill diverse needs. Our superior products are highly esteemed across China and on the global stage, garnering trust and admiration in countries including Saudi Arabia, Yemen, the UAE, Syria, Kuwait, Lithuania, Azerbaijan, Russia, Indonesia, Vietnam, Egypt, Malaysia, the Philippines, Bolivia, and Colombia. Our unwavering dedication to excellence propels us towards perpetual improvement and unparalleled customer satisfaction.
Driven by a steadfast commitment to rigorous quality control and exceptional customer service, our team of seasoned professionals is always poised to address your specific needs and ensure your utmost satisfaction. Our ambition to expand our global footprint is matched by our eagerness to cultivate enduring partnerships. We warmly invite you to consider a collaborative journey with us and to seize the opportunity to connect for future endeavors. We extend an open invitation to visit our state-of-the-art production facilities at your convenience, offering you an exclusive insight into our cutting-edge operations and manufacturing expertise.
1. Tianjin Kaishuo Weiye Steel Co., Ltd. stands as a paragon of industrial excellence with our sprawling manufacturing hubs nestled in prime locations across Shandong, Hebei, and Zhejiang, China. Each of our facilities extends over an impressive 70,000 square meters, housing cutting-edge processing apparatus, including large and circular shearing machines, precision straightening machines, sophisticated annealing furnaces, and an innovative punching and shearing production line, ensuring unparalleled quality and efficiency.
2. Boasting a substantial annual inventory surpassing 10,000 tons, we adeptly fulfill the multifaceted needs of our global clientele. Our robust sales network spans the entire globe, proudly exporting to more than 100 countries, such as Brazil, Peru, Cameroon, Senegal, Ghana, Botswana, Samoa, Russia, Thailand, and India, among others, solidifying our presence on the international stage.
3. Our products epitomize unparalleled quality, proudly bearing certifications from illustrious entities like ISO9001, SGS, JIS, and BV. Each item is meticulously accompanied by a comprehensive inspection report, assuring our esteemed customers of our unwavering commitment to quality and transparency.
4. We take immense pride in sustaining an abundant inventory, enabling us to expedite orders with exceptional promptness. Our tireless team is at your service round-the-clock, 7*24 hours, fortified by a highly skilled sales and after-sales service unit, ready to efficiently address and resolve any inquiries or challenges you may face, ensuring unparalleled customer satisfaction.
5. Our rigorous quality control system is a testament to our steadfast dedication to excellence. We offer bespoke customization to meet your precise size requirements, harmonizing superior quality with competitive pricing. Reach out to us today to explore our exclusive discounts and experience our remarkable service firsthand.
1. who are we?
We are based in TianJin, China, start from 2021,sell to Africa(20.00%),Mid East(15.00%),South America(10.00%),Eastern Europe(5.00%),Southeast Asia(5.00%),Oceania(5.00%),Southeast Asia(10.00%),Central America(5.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Cold Rolled Steel Coil,Steel Pipe,Galvanized Steel Coil,Stainless Steel Plate/Sheet,Seamless Steel Tube
4. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Portuguese,French,Russian
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